ebony

a hard, heavy, durable wood, most highly prized when black, from various tropical trees of the genus Diospyros, as D. ebenum of southern India and Sri Lanka, used for cabinetwork, ornamental objects, etc.

1590s, from hebenyf (late 14c.), perhaps a Middle English misreading of Latin hebeninus "of ebony," from Greek ebeninos, from ebenos "ebony," probably from Egyptian hbnj or another Semitic source. Figurative use to suggest intense blackness is from 1620s. As an adjective, from 1590s. French ébène, Old High German ebenus (German Ebenholz) are from Latin ebenus.